%0 Journal Article
%T ERROR ESTIMATES FOR FINIT ELEMENT GREEN FUNCTION ON CONCAVE POLYGON<br>凹角域上Green函数有限元逼近的逐点估计及有限元外推
%A 谢锐锋
%J 计算数学
%D 1988
%I 
%X Using weighted norms we obtain in this paper some estimates of the error of discrete Greenfunction for elliptic boundary value problems on concave polysonal domain. From these re-sults we derive the asympsotic expansion for finite element approximation on convace do-main.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=37F46C35E03B4B86&jid=CC77F3CEF526D9CF0B3021650FB4E57E&aid=643596BF49037B7EC6FAF5C8F02E3B4C&yid=0702FE8EC3581E51&vid=F3090AE9B60B7ED1&iid=38B194292C032A66&sid=E1D946F217E3B046&eid=6A73B36E85DB0CE9&journal_id=0254-7791&journal_name=计算数学&referenced_num=1&reference_num=0